China lithium carbonate market experienced a sharp sell-off on Monday July 20, with both futures and spot prices falling in tandem. The most-traded GFEX contract LC2609 closed the day session at Yuan 143,900/tonne, down 5.61% on the day, after hitting an intraday low of Yuan 141,400/tonne. The LC2701 contract briefly fell more than 10% to below Yuan 140,000/tonne. On the spot market, Mysteel assessed battery-grade lithium carbonate at Yuan 150,050/tonne in the evening session, down Yuan 2,500/tonne from the previous day.
Sources: GFEX, Mysteel
The sharp decline was driven by a "weak expectations" narrative, centering on medium-term supply ramp-up and policy-driven cost transmission, overwhelming the "strong fundamentals" of near-term destocking and supply curtailments.
The policy trigger came from the consumption tax announcement on batteries collectively issued by the Ministry of Finance, the General Administration of Customs, and the State Taxation Administration. Effective September 1, 2026, a 2% tax will apply to lithium primary and lithium-ion batteries, rising to 4% from September 1, 2027. Sodium-ion and solid-state batteries will be exempt through end-2028, and batteries used in continuous production or for export are also exempt.
While the market had already partially priced in the policy through earlier speculation, its medium-term implications are significant. The 2% and 4% tax rates are estimated to raise lithium carbonate costs by Yuan 10,000-12,000/tonne and Yuan 20,000-24,000/tonne, respectively. This will accelerate capacity consolidation among second and third-tier battery producers, while steering demand toward tax-exempt sodium-ion and solid-state alternatives, potentially constraining longer-term lithium demand.
Despite the weak expectations, near-term fundamentals have remained resilient. On the supply side, Sichuan Tianhua Lithium announced on July 19 a full maintenance shutdown of its 53,000-tonne-per-year battery-grade lithium carbonate production line. The first line will shut from August 13 for up to 26 days, and the second from August 28 for up to 32 days, with an estimated total reduction of 4,000-4,300 tonnes of battery-grade lithium carbonate output.
Inventory data reinforced the destocking narrative. As of July 17, traders' lithium ore stocks stood at 97,000 tonnes, down 212,000 tonnes from the year-to-date peak. The lithium ore inventories of lithium converters relying on outsourced feedstock recorded 456,000 tonnes, slightly up by 11,000 tonnes week-on-week but still 118,000 tonnes below the peak. Meanwhile, the traders' marketable lithium carbonate inventories fell to 22,680 tonnes as of July 16. GFEX warehouse receipts stood at 41,359 lots, continuing their downward trend.
Source: Mysteel
On the production front, some lithium converters have been cautious in price settlement, having locked in feedstock at higher costs earlier. Large converters have already secured supply through October. Processing capacity in the Bohai Rim region has been constrained by logistics bottlenecks at the Port of Beira in Zimbabwe, limiting output flexibility. Processing fees for Australia's spodumene remained stable at Yuan 16,000-17,000/tonne, while port inventories have recovered modestly following higher shipments in June.
Looking ahead, however, ore-side supply additions are transitioning from expectations to reality, forming a persistent medium-term overhang. The resumption of production at the Jianxiawo mine is set to add physical supply, while shipments from Zimbabwe are gradually recovering and three major Australian expansion projects are coming online in the second half. The inflow of low-cost overseas feedstock will continue to exert downward pressure on domestic lithium carbonate prices.
On the demand side, fundamentals remain relatively resilient. The energy storage-related battery orders have already been booked through 2027, electric vehicle wholesale sales in June maintained year-on-year growth above 20%, and the pre-2027 export tax rebate phase-out is gradually creating a demand front-loading effect. However, under a "rising supply, stable demand" dynamic, market confidence in sustained destocking through the second half is weakening, and the futures market has already started pricing in a medium-term surplus scenario.
Going into late Q3 and Q4, key variables to watch include whether lithium carbonate spot prices show tangible strength (as reflected in basis movements), whether the market can maintain destocking month by month, and the magnitude of any destocking. With the July warrant expiry period still ahead, the "weak expectations" narrative is likely to continue dominating near-term price direction.
Written by Aggie Hu, huchenying@mysteel.com
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